Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.

SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).

TwistedWave - TwistedWave is one of the unique audio editors that allow you to edit your music file online without any installation.

Buzz - Buzz is the first ever "easy to use" free modular software based synthesizer.

Radium - Radium is a music editor with a new type of interface.

Leapic Audio Editor - Leapic Audio Editor is a all-in-one audio editor, converter, recorder, player, splitter and joiner.